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Finding the Fourth Proportional to 606,891, 837,509.58 and 338,619

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Solution

The fourth proportional to 606,891, 837,509.58 and 338,619 is: 467,294.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,891 : 837,509.58 = 338,619 : x
  2. Step 2: Convert to fraction form
    606,891/837,509.58 = 338,619/x
  3. Step 3: Cross multiply
    606,891x = 837,509.58 × 338,619
  4. Step 4: Simplify right side
    606,891x = 283,596,656,470.02
  5. Step 5: Solve for x
    x = 283,596,656,470.02/606,891
  6. Step 6: Final answer
    x = 467,294.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.